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x402 Utils – Phone Number Validation & Formatting
x402
x402 Utils – Phone Number Validation & Formatting is a paid API for AI agents from qcb7fnxsbd7fbhj4.68r.lambda-web.us-east-1.on.aws, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-30).
Validates a phone number, identifies its country and type (mobile, fixed line, toll-free, etc.), and returns it formatted as E.164, international, and national formats using libphonenumber metadata.
Price / call$0.001
Success—
StatusUnknown
How this service works
Check whether a phone number is valid and possible, find its country and type (mobile, fixed line, toll free and others), and format it as E.164, international and national (libphonenumber metadata).
Output
A JSON object containing: whether the number is valid (boolean), the phone number type (e.g. MOBILE, FIXED_LINE, TOLL_FREE, FIXED_LINE_OR_MOBILE), the ISO country code, and three formatted representations — E.164 (e.g. +16502530000), international (e.g. +1 650 253 0000), and national (e.g. (650) 253-0000).
Example use cases
Validate user-submitted phone at signup
“Before we create this account, check whether the phone number the user entered — +44 7911 123456 — is valid, and tell me if it's a mobile number in the UK.”
Normalize contact list to E.164
“I have a Japanese phone number written nationally as 03-1234-5678 with country code JP — can you validate it and give me the clean E.164 and international format I need to store in our system?”
Identify toll-free vs mobile number
“Can you tell me whether +1 800 555 0199 is a real phone number, what type it is (toll-free, mobile, or landline), and format it in E.164?”
Technical details
Endpoint
GEThttps://qcb7fnxsbd7fbhj4.68r.lambda-web.us-east-1.on.aws/v1/phone?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need authoritative phone number validation and multi-format output (E.164, international, national) powered by Google's libphonenumber data — the gold standard for phone parsing. Prefer it over regex-only checks, which cannot verify number range validity or classify type. Ideal for pre-flight checks before sending SMS, normalizing phone data for storage, or enriching contact records with country and line-type metadata.
Side effects
- Invalid or unparseable phone number string returns valid: false with no formatting
- Missing required 'number' query parameter causes a 400 error
- National number provided without a country code (ISO) may fail or misclassify
- Rare or extremely new number ranges may not be recognized by libphonenumber metadata
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"e164": "+16502530000",
"type": "FIXED_LINE_OR_MOBILE",
"valid": true,
"country": "US",
"national": "(650) 253-0000",
"international": "+1 650 253 0000"
}
}Tags
x402
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